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Astron. Astrophys. 328, 211-218 (1997)

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5. Summary

[FORMULA] The ALRW91 carbon stars are likely not located in the Bulge, but are related to the SDG.
[FORMULA] The ALRW91 carbon stars are not metal-rich.
[FORMULA] The metallicity is about Z = 0.008 with an age between 0.1 - 1 Gyr.
[FORMULA] A significant number of the ALRW91 carbon stars are located below the tip of the red giant branch.
[FORMULA] The origin of the carbon stars one magnitude below the red giant branch tip cannot be explained with the evolution of a TP-AGB star.
[FORMULA] The faint carbon stars likely originated through mass transfer from binary evolution.

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© European Southern Observatory (ESO) 1997

Online publication: March 24, 1998

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